Questions tagged [240v]

For questions dealing with 240 volt electrical circuits, devices, and equipment. This tag covers the similar voltages as well (i.e. 220, 230, etc), since they generally refer to the same thing. Use with the [electrical] tag.

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3answers
2k views

How can I relocate hookups for washer and electric dryer?

EDIT: added info and added alternate locations. Our washer and dryer hookups are located out of reach, 40" behind the appliances. They are mounted on what, in the 1940's, was the exterior side of an ...
3
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1answer
655 views

Can I add a 240v outlet inline with a sub-panel supply circuit?

I have a 30 amp 2 pole breaker in my main panel (in garage) that supplies a sub panel in my small workshop (back yard) ~ 100 ft run 4 wire 10GA. for 15 amp outlets. In order to add this 30 amp ...
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0answers
62 views

240v/200v between hot and neutral,24-41v between hot and hot

yesterday our power went off. No break in the circuit board. One of the lights still works. But let me explain the house. It's very small, probably 12x4m. Our bedroom is closest to the circuit board....
22
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1answer
3k views

240v Outlet with 120v and 215v - How?

Ok this is a weird one and maybe I just don't understand how mains work (though I feel I have a good enough knowledge to stay safe and do basic breaker work & wiring). Buddy moved into a new shop ...
2
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1answer
316 views

My electric water switch using 240v broke again is there something wrong with the switch?

The electrical voltage I'm using is 240v similar to Britain's kind and the electric switch connected to it has been broken before probably a year ago. Previously, the light indicator(switch) was a ...
2
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1answer
2k views

Do 240 volt dryers need to be AFCI protected

Under 2014 NEC do 240 volt dryer sockets need to be AFCI protected? I see paragraphs specifying that single phase 125 volt circuits must be protected, but I have not found specifications for two ...
2
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1answer
4k views

How can I install a Miele Washer and Dryer that use a 240V/15A splitter?

I recently purchased a washer/dryer set at auction. I was in need of a new set due to troubles with our current washer and wasn't all that happy with it when it was working. So, I when I found a Miele ...
2
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2answers
13k views

Size of circuit breakers for 220v circuit

I'm considering a piece of shop equipment with a motor that can be wired as 110-volt (20-amp) or 220-volt (10-amp). I'm leaning towards 220v despite the additional cost of installing the electrical ...
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5answers
10k views

Can I handle-tie two 120V breakers for a 240V load?

Due to an ordering error a long time ago, I have too many 30A 1-pole "CH" brand breakers. (these are single breakers, not tandem/double-stuff). As you probably realize, there isn't much call for ...
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0answers
716 views

change 110v outlet to 240v/30 amp?

I need to install a 240v/30 amp outlet for a microwave (a Turbochef, kind of like a microwave on steroids.) I have a single 110v outlet on its own circuit. It's using 10 awg copper. Can I replace ...
2
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1answer
236 views

Electrical - Please review my well pump installation

I just finished wiring up my irrigation well pump. The circuts were 240V from the main panel outside to the a pump start relay. The relay is controlled by my rain bird. Everything is working and no ...
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1answer
2k views

Can I install 2 30 amp twist lock receptacles in a 2 gang box on 1 circuit?

I have 10 AWG wire run to a 2 gang box (10-2 wire). It is 1 circuit protected by a double pole 30 amp breaker. Since it is 2-gang, can I use 2 30 amp twist lock receptacles (specifically the Hubbell ...
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1answer
4k views

Do both legs in 220V have to be switched?

I posted this question but for some reason I can't get back into my account: Is it up to code to do a parallel circut with 220V? Is there a limit to number of splices? Most things I see with 220V ...
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2answers
511 views

Is it up to code to do a parallel circut with 220V? Is there a limit to number of splices?

State is Florida. I am wiring a continuous run non-submersible irrigation well pump. I am using a 30A breaker with #10 THHN in Sch 40 PVC conduit buried 18". I could have gone direct bury but I ...
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4answers
763 views

How is a a two phase, three wire, grounding plug such as a NEMA 6-20P safe to use?

I'm looking to use a piece of commercial equipment in my home, and I've been reading about AC current and circuits. I currently have access to an old style non grounding 10-30 style plug, which I ...
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1answer
1k views

Changing a 240v plug with 4 wires to 240v plug 3 wires

I have a outlet that is 240V with 4 wires. I want to change it to 3 wires, I am assuming the black is also a hot wire. With the volt meter I get 220V touching the two red wires and 110V when i touch ...
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1answer
11k views

Adding GFCI to a 220v outlet

First off, please excuse my clunky use of electrical language. I'm not exactly sure what I'm talking about. I recently added a 220v/30amp outlet to my garage for the purpose of an electric ...
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4answers
8k views

3 phase (delta) power to single phase space heater

I bought a 240V single phase, space heater for heating up a warehouse space. The warehouse has 240V power in a delta configuration (no neutral). My understanding is that in a delta configuration, ...
2
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1answer
2k views

How can I build a subpanel off a 3 prong 220V dryer outlet?

I have an unused 220V, 3 prong (2-conductor) dryer outlet in my garage and would like to convert that into 2 110V supplies to some overhead lights and a ceiling outlet for a garage door opener. How do ...
2
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1answer
159 views

Run 3 Phase motor from 240V service?

I just bought an older Delta Table Saw with a 3 phase motor. I have 240 Volt service. How can I wire the motor, or what do I need to do to make it work?
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2answers
1k views

How to splice 220 line to use for multiple uses

I have a 50A 220v box outside for use during a power outage to feed the breaker box on both bars. Since this is very rarely used, i'd like to use it to install a 'dryer plug' for a new shop heater. ...
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2answers
113 views

I have a 30amp 240 breaker going to a 240v water pump. I want to protect each leg with a GFI

I have a 30amp, 240v circuit running to a 240v water pump. Can I add a 20amp GFI to each leg?
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1answer
2k views

Use 6-30 plug on 14-50 outlet

I am planning to install a NEMA 14-50 outlet in my garage on a 40A breaker (Romex 8/3 cable from breaker to outlet) for use with an electric car charger. The charger will charge my wife's car in the ...
2
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2answers
167 views

220v outlet safety question - Circuit breaker not tripped after a fire

An old oven (20+ years) plugged into an 220v 3-pronged outlet suddenly caught fire when we tried to use the oven a week ago. We replaced the appliance today but found that it would not power on when ...
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2answers
1k views

Electric Dryer Leg A drops to 0V Leg B spikes at 240V when start pushed

I am in the military and came back from a month overseas and my 3 prong electric dryer would not start. I am an electronics technician (radios) so I am quite experiences with electronics and theory (...
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1answer
626 views

Is my NEMA 14-30R to NEMA L6-30R adapter safe?

At our studio we have a NEMA 14-30R outlet used for our kiln. When not in use, we want to use another piece of equipment that has an L6-30P plug. I believe the equipment is rated at 8AMP 240V. I ...
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2answers
3k views

What could cause a 220v dryer outlet to have proper voltage but not power the dryer?

I bought a used washer and dryer about a month ago from a warehouse dealer that specializes in used appliances. The dryer worked for about a month then refused to operate. I called the appliance guy ...
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1answer
351 views

One cable, two circuits, 240V, Germany

I am remodeling my kitchen and the wiring that was ran for the cooktop/oven is shown in the included picture; 3 hot, 1 neutral, and a ground. Is it possible to split the 5 wires into two separate ...
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2answers
2k views

Is it possible to adapt a NEMA 14-50R to a NEMA 6-20P or NEMA 6-30P appliance?

In a Canadian residential kitchen, in a house built in the late 1970's, there is a NEMA 14-50R, on a 30 Amp breaker. Currently a standard oven/range combo is plugged into this receptacle. I would ...
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2answers
1k views

Can I have a clothes dryer and room heater on one circuit?

I currently have a 100 amp panel (square D) with no free slots. I'm looking at adding an electric heater (1000 watts, 240V) to the washroom. I'm wondering if I can replace the 30 amp breaker for the ...
0
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3answers
276 views

Can I safely create another 120V outlet using the fourth neutral wire from a 4 wire 240V line?

I recently just ran a 4 conductor 240 volt line out to my shed. I chose to run the extra conductor just in case, but I do not currently need it for my application. My question is, can I add a 120V ...
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2answers
205 views

220V/50hz with 10amp 3 wire

See Additional Added Info: I have an electric motor that I want to plug in at my house (USA). The device is 220V, 50hz and 600watt. The power cord (no plug) is 3 wires, and rated as 10amp. If I ...
2
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3answers
170 views

120 V between Ground and Neutral?

I had a new cooktop installed but it does not work. The unit replaced an old one and was simply plugged into the existing outlet. After checking the basics (no tripped breakers, etc), I whipped out ...
0
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5answers
21k views

240 volt house wiring, 130 volts on one leg and 112 volts on the other?

In my folks old farm house, at the panels main input from outside. L1 is 130v. L2 is 112v. When a load is applied both legs down voltage, allot! Anywhere from 10 to 20v. The wires running from the ...
2
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1answer
2k views

How to connect single-phase appliance to 240v feed?

I had a licensed electrician install this circuit with NEMA 14-30 receptacle before I knew which specific appliance would be used on the circuit. I now have the appliance with a 14-30 plug, but it ...
3
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3answers
602 views

Connecting the four terminals of a 14-50P to a homebrew 240v system with three wires

I bought a new 240v homebrew system. The system requires a 30 amp circuit and comes with 10 gauge wires (black, white, green) but no plug (so you can connect the plug needed for your situation). I ...
0
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1answer
943 views

Running a new 240v circuit for a dryer

I just bought a home with a gas hookup for the dryer, but I have a fairly recent, perfectly working electric dryer, so I've decided to run a 240v line instead of purchasing a new gas dryer. This is ...
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2answers
133 views

GFCI pops when the heater comes on

Just wired a new heater like this and the GFCI pops when the heater comes on. Can someone explain to me why this is happening?
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2answers
330 views

Confused by ~115VAC 5-wire cabling to UK thermostat

I have a 5-wire cable as used for 3-phase (i.e. stripes/blue/brown/black/grey) coming to a hole where a thermostat was - only the earth, live (brown), and switched live (black) were used by this ...
3
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5answers
2k views

Need another 240v breaker

I bought a device called Sense to monitor home electrical usage that is installed in your electrical panel. The device needs to be connected to a 240v breaker like this: The problem is that I only ...
3
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4answers
4k views

Looking for or adding a ground to an existing NEMA 10-30 socket

I have an unused older 3-wire dryer socket (NEMA 10-30R) in my garage, I would like to upgrade this to a NEMA 14-30 socket with an separate ground. I'll be using this for an EVSE unit for electrical ...
0
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1answer
358 views

Starting to build up my tools collection, is 110v preferable over 240v?

I am just starting out on my first major project this weekend and I am looking at getting some new tools. I've had experience using plenty of 240v power tools, but now that I am looking at getting my ...
5
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5answers
17k views

Hot Tub Disconnect Location

I have a concrete slab which can fit a hot tub approximately at a distance of 8 feet from the main breaker panel (located outside on my porch). I assume that I will still need a separate disconnect ...
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1answer
556 views

Can I use a transformer with center tap to convert 240V to 120v? [closed]

I want to buy a 500W RMS surround system from the US and it is 120VAC. I'm planning to use a transformer here but I'm not sure what is the size/specs of the transformer to use or will it going to ...
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3answers
112 views

Can I run these appliances with 25A

I'm looking to lease a floor of a building for office purposes but the building owner has placed a cap on current to 25Amp due to limited current available. I'm no expert but he has consulted a ...
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2answers
398 views

Changing 240V plug type

I have a device (a popcorn popper) that has an L14-20P plug. I would like to use it with my stove's 14-50R receptacle. Since the device is rated for 20 Amp, and the receptacle for 50, this should be ...
4
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2answers
8k views

How is ground wire handled on 240V outlet?

I'm in the process of moving 240V outlet. The outlet has three wires connected. See the image: In the junction box I can see the ground coming out of the outlet. See the image: So where is the ...
1
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1answer
640 views

240V power plug, only getting 120v, and 97v?

This is the plug/socket: Between one line and neutral, I get 120v. Between the other line and neutral, I get nothing. However, when I go between the line and the line, I get 97 volts. (I'm testing ...
5
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2answers
23k views

Replacing 240V outlet with 120V

I just moved into a new home, and we have an outlet in the bathroom that was set up for a washer/dryer in case we wanted to go that route. The outlet is a NEMA 10-30R. We are happy with the dryer ...
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1answer
2k views

How can I tell if two outlets are on different phases?

I have a house that had a 240v stove in it, and then was replaced with a gas stove, all before I bought it. There are two regular 120v outlets under it, that are both 120v, and the gas stove is ...